CPU Performance: Rendering Tests

Rendering is often a key target for processor workloads, lending itself to a professional environment. It comes in different formats as well, from 3D rendering through rasterization, such as games, or by ray tracing, and invokes the ability of the software to manage meshes, textures, collisions, aliasing, physics (in animations), and discarding unnecessary work. Most renderers offer CPU code paths, while a few use GPUs and select environments use FPGAs or dedicated ASICs. For big studios however, CPUs are still the hardware of choice.

All of our benchmark results can also be found in our benchmark engine, Bench.

Corona 1.3: Performance Render

An advanced performance based renderer for software such as 3ds Max and Cinema 4D, the Corona benchmark renders a generated scene as a standard under its 1.3 software version. Normally the GUI implementation of the benchmark shows the scene being built, and allows the user to upload the result as a ‘time to complete’.

We got in contact with the developer who gave us a command line version of the benchmark that does a direct output of results. Rather than reporting time, we report the average number of rays per second across six runs, as the performance scaling of a result per unit time is typically visually easier to understand.

The Corona benchmark website can be found at https://corona-renderer.com/benchmark

Corona 1.3 Benchmark

 

LuxMark v3.1: LuxRender via Different Code Paths

As stated at the top, there are many different ways to process rendering data: CPU, GPU, Accelerator, and others. On top of that, there are many frameworks and APIs in which to program, depending on how the software will be used. LuxMark, a benchmark developed using the LuxRender engine, offers several different scenes and APIs.

In our test, we run the simple ‘Ball’ scene on both the C++ and OpenCL code paths, but in CPU mode. This scene starts with a rough render and slowly improves the quality over two minutes, giving a final result in what is essentially an average ‘kilorays per second’.

LuxMark v3.1 C++

 

POV-Ray 3.7.1: Ray Tracing

The Persistence of Vision ray tracing engine is another well-known benchmarking tool, which was in a state of relative hibernation until AMD released its Zen processors, to which suddenly both Intel and AMD were submitting code to the main branch of the open source project. For our test, we use the built-in benchmark for all-cores, called from the command line.

POV-Ray can be downloaded from http://www.povray.org/

POV-Ray 3.7.1 Benchmark

 

CPU Performance: System Tests CPU Performance: Encoding Tests
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  • Spunjji - Monday, May 11, 2020 - link

    Those were the days!
  • stardude82 - Thursday, May 7, 2020 - link

    What I get from this is my 9 year old Sandy Bridge i7 is probably good enough for modern games when not playing with a $1000 video card.
  • Spunjji - Monday, May 11, 2020 - link

    Quite correct, if it's overclocked. There are a few exceptions, though, and there will be more over the next few years. Sandy was a beast.
  • stardude82 - Thursday, May 7, 2020 - link

    Hey, Ian, for my edification, what happens if you turned HT/SMT for one of the quad-cores? Do modern games tank?
  • boozed - Thursday, May 7, 2020 - link

    It's been a while since I've seen game benchmarks at 800x600!
  • watzupken - Thursday, May 7, 2020 - link

    It is impressive that a low end AMD chip soundly beat the ex flagship, 7700K. The 3300X is certainly the better option to go for between the 2 entry level Ryzen.
  • Alexvrb - Thursday, May 7, 2020 - link

    I have to chuckle a bit when I see Dwarf Fortress as a "new" benchmark. I doubt it uses any modern processor to its fullest.
  • Ian Cutress - Friday, May 8, 2020 - link

    Over the last couple of years it's been requested a few times. I finally got around to sorting out a benchmark for it and adding it into our automated script. Seems to work almost flawlessly on any system I'm testing it on. That big gen test can take 1hr+ though.
  • Deicidium369 - Friday, May 8, 2020 - link

    Dwarf Fortress is the gaming equivalent to dentists - pure sadism
  • Spunjji - Monday, May 11, 2020 - link

    The results seem to indicate that it prefers clock speed over either threads or IPC.

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